Alex Crichton
d166a30c11
* Move everything to azure pipelines * Inline docker configuration in this repo (no `cross`) * Delete `no-panic` example, use `#[no_panic]` instead.
16 lines
494 B
Rust
16 lines
494 B
Rust
use core::u64;
|
|
|
|
#[inline]
|
|
#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
|
|
pub fn fabs(x: f64) -> f64 {
|
|
// On wasm32 we know that LLVM's intrinsic will compile to an optimized
|
|
// `f64.abs` native instruction, so we can leverage this for both code size
|
|
// and speed.
|
|
llvm_intrinsically_optimized! {
|
|
#[cfg(target_arch = "wasm32")] {
|
|
return unsafe { ::core::intrinsics::fabsf64(x) }
|
|
}
|
|
}
|
|
f64::from_bits(x.to_bits() & (u64::MAX / 2))
|
|
}
|